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Thread: Water filters

  1. #1
    Senior Member fatboy_1999's Avatar
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    Water filters

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Ive tried searching the site for some info on water filters that Im sure was posted a while back, but to no avail.

    Basically, I wanted to know if someone can enlighten me on a decent system to attach to the kitchen taps. Im keen to reduce the amount of scale producing crud Im filling my machine with if at all possible.

    I understand that the Brita jugs I currently use do not filter out all impurities, but Im finding researching on the web a little vague as well.

    Some filters claim to remove metals, some mention hardness, but dont really give details on which type of filter or process to use.

    Anyone got a good unit they can recommend?

    Brett.

  2. #2
    Mal Dimal's Avatar
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    Re: Water filters

    Gday Brett,

    Give FC a call at Cosmorex, hes got lots of info and options for this sort of application,

    Mal.

  3. #3
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    Re: Water filters

    Brett, my understanding is that BRITA filters DO remove just about eveyrything in water except fluoride, and certainly the calcium compounds.

    www.brita.com.au

    -Robusto

  4. #4
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    Re: Water filters

    I lucked out at Kmart a fortnight ago - they had these Brita jugs with a special pack for mum but I couldnt see a price anywhere so I took it to one of the price check scanners where it came up at $3. Considering the same jug without the extra pack was $35 I scurried up to the checkout and put it through as fast as I could - love it when they miss a 0 in the pricing.

    This one uses a new filter (maxtra or something) which is supposed to (cut and paste from their website follows):

    Step 1
    Pre-Filtration: The water flows through a fine mesh filter.

    Step 2
    Ion Exchange Filtration: The ion exchange resin reduces the heavy metals, including lead and copper, as well as the carbonate hardness that causes limescale build-up in kettles and affects the taste and aroma of tea or coffee.

    Step 3
    Activated Carbon Filtration: The granulated activated carbon significantly reduces substances that affect the taste and odour of your tap water, such as chlorine, certain pesticides and organic impurities.

    Step 4
    Final Filtration: Fine mesh particle filter.


    Anyway it works pretty well for what it is, but as with anything it has its limitations.

  5. #5
    Sleep is overrated Thundergod's Avatar
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    Re: Water filters

    I saw the new maxtra filters on the Brita stand at Kmart today.
    I was lucky and picked up a frypan for a 50% discount.
    After price scan errors and taking the supervisor to see the shelf price we were still none the wiser as to the correct presale price but I ended up paying half the scanned price which worked out to $16.
    For a 30cm Tefal Im happy with the deal.

    Ive been using a Brita that I dug out from the back of the cupboard when I got my Expobar.
    I found a great price on a 4 pack of filters one day in Coles and basicaaly got one free.
    At my rate of usage I change for a new filter every 3 months.
    It can be a pain waiting for it to filter, so Im in the habit now of filling the jug every time I empty it and then its always ready to top up my resevoir.

    Mum has a built in unit under the sink.
    Its convenient in not having to change filters as often but is slow to pour so I prefer my jug.

  6. #6
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    Re: Water filters

    If you buy Brita jug filter catridges when they are on special, as often they are, they can be obtained for around $6 or $7 each, and last 6 months. Probably the cheapest filters available.

    On my boat I use an inline silver-impregnated carbon filter and that works out at around $60-$70 a year.

    -Robusto

  7. #7
    Mal Dimal's Avatar
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    Re: Water filters

    I think Brita Systems are ok for light solutions of hardness minerals but if your tap water is really hard, the filters will only remove the Calcium and Magnesium compounds for a short while and then become saturated. They will still work ok for all the other factors up to the quoted limits, so if your primary reason for using this type of filtration is to remove water hardness compounds, then you would be better served using other measures, hence my recommendation to talk to Attilio of CosmoreX Coffee, he has significant experience in this area.....

    All the best,
    Mal.

  8. #8
    Senior Member fatboy_1999's Avatar
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    Re: Water filters

    Thanks Mal,
    Ill give Attilio a buzz soon.

    Ive been using the Brita cartridges in jugs for over 2 years. They do a great job with things like chlorine and visible particulants, and the taste of the water is fine, but they do NOT appear to be a firm solution to calcium and other factors contributing to scale in the boiler.

    My Silvia only ever had water from these filtered jugs and still built up scale.

    Now, Melbourne water isnt too bad (or wasnt in the past) but since we are getting so low in the dam capacity now, the water quality is noticeably worse recently, so Im looking for a more solid solution.

    Brett.


  9. #9
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    Re: Water filters

    Quote Originally Posted by fatboy link=1167137360/0#7 date=1167208969
    Thanks Mal,

    Now, Melbourne water isnt too bad (or wasnt in the past) but since we are getting so low in the dam capacity now, the water quality is noticeably worse recently, so Im looking for a more solid solution.

    Brett.
    I dont know what part of Melbourne you live in Brett, but Ive certainly not noticed any difference in water quality, drought or no drought.

    The dams are not "so low". They are at this moment 39.1 per cent full. Water purity is determined by filtration and sterilising additives controlled by Melbourne Water, not by water level.

    -Robusto

  10. #10
    Senior Member fatboy_1999's Avatar
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    Re: Water filters

    robusto,

    Just above my picture is a hint to what suburb I am in.

    The dam level surely contributes to water purity.
    The water is drawn from the middle part of the dam. The cleaner the water, the less additives are required. The lower the level, the smaller the window of naturally clean water to draw on.

    Our dam levels are certainly lower than they have been for a long time and I have noticed the extra chlorine in our water over the last few weeks.

    Ive never noticed the smell of chlorine in Melbourne water before, so I came to the conclusion that it is being added due to the decrease in water quality.

    This is in conjunction with an article I read in the Age a few months back that said once we went under 40%, the water companies were in new territory (as the levels had not been this low since pre privatisation).

    Anyhow, the upshot is - I think the water quality has decreased, so I want to do something about it in my own house.

    Brett.

  11. #11
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    Re: Water filters

    counter top model kdf carbon filter will do the trick a diverter valve is fitted to the tap cheers poddy66

  12. #12
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    Re: Water filters

    Quote Originally Posted by fatboy link=1167137360/0#9 date=1167211753
    Just above my picture is a hint to what suburb I am in.

    Brett.

    I give in. Youe in Fatboy suburb? *Starsville? *Smokeyburg...... A hint, please! :-/

    Robusto

  13. #13
    Senior Member fatboy_1999's Avatar
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    Re: Water filters

    Really?

    Umm.. OK.

    On the left, where my name is, it reads.
    fatboy
    Ol Smokey
    *****
    Wheelers Hill
    Victoria
    Australia

    And on the news tonight, predictions that Thomsons Dam may fall below 20% by May. Spooky stuff.

  14. #14
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    Re: Water filters

    It reads to me

    How could you not love a baby?

    :-?

  15. #15
    Senior Member fatboy_1999's Avatar
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    Re: Water filters

    Ah, well it must be a setting in Profile then.

    I have input my location in my profile and see it when I make a post. If other people have put in their locations (like Coffee Kid, Brisbane, Queensland, Australia), I can also see them.

    I thought it was a default.

    My apologies.

    Brett.

  16. #16
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    Re: Water filters

    For anyone else who has been wondering how Fatboy could see that Coffee Kid lives in Brisbane, click on Profile/Modify/*enter password*/Options. *At the bottom is an option to View location in posts - check the text option and click on change profile. *Voila - suddenly I can see where people live, if theyve entered that information of course.

    Very off topic I know......

  17. #17
    Mal Dimal's Avatar
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    Re: Water filters

    Quote Originally Posted by poddy66 link=1167137360/0#10 date=1167302683
    counter top model kdf carbon filter will do the trick a diverter valve is fitted to the tap cheers poddy66
    Gday P66,

    Actually mate, the Carbon Filters only remove some chemical contaminants, some metals and some odours. To get rid of Scale Producing Compounds you need either a Water Softener that is permanently connected in to your mains water system or a filter with a specially treated resin compound that removes them via an ionic process. The second option though requires regular filter replacement to maintain efficacy where-as the Water Softener will just require regular reverse flushing and recharging.... Works out cheaper in the long run.

    Mal.

  18. #18
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    Re: Water filters

    You can see the persons location, assuming theyve entered it, by hovering your cursor over the flag under their nick to the left of the post.


    Java "Just hovering around" phile

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    Re: Water filters

    From what I have gleaned about filters (extensive research when installing a pressurised drinking water system on my cruiser), Mal is right.

    I wont bore you with the details, but most filters will use activated charcoal, usually made by burning cocoanut husks.

    Activated charcoal removes malodorous substances and the larger particle contaminants. The charcoal has a very lare surface area.

    Otherwise, if the waters only problem is "dirt" it could be removed by the traditional method of passing through a big sand mass, as in swimming pools. But obviously impractical for domestic application.

    Ion exchange--those periods of chemistry and valencies at school are finally paying off---handles magnesium and calcium which, when heated by the element, produce the familiar rusty-coloured limescale.

    Because tap water has been treated with chlorine as the most common disinfectant, the chlorine actually stops bacteria growing within the filter. Up until the point where the filter needs changing because it is saturated.

    To be effective, the filter must remain submerged in water. This isnt always possible --- on our boat we may not be there for weeks at a time.

    So, in that situation, to prevent bacteria growing, activated charcoal impregnated with silver is used. And the cost of cartridges blows out to about $70.

    Hope this doesnt muddy the waters too much.

    -Robust

  20. #20
    CoffeeSnobs Owner Andy's Avatar
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    Re: Water filters

    I just removed a whole lot of noise in an otherwise interesting thread. *

    I think poddy66 should have another go at posting his thoughts on filter systems (without attacks and without making it an ad for someone) so we can get some differing opinions.

    :)

    Be nice people. 8-)

  21. #21
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    Re: Water filters

    i have been a plumber for 20 years and have had good experiance in the field good postings on water filter systems my previous posts my have been a bit short and not understood sorry for that coffee snobs.I have been looking further into the scale i agree in re-gard to mixed- bed ion exchange resin together wth granular activated carbon this aplication would remove 99.8% of total disolved solid from the water. my research has shown that the use of granular activated carbon with slow disolving phospate helps prevent scale so what do you all think ?.i am not a sales person for filters nor do work for a filter company hope my imput has been helpful cheers steven poddy66





  22. #22
    Mal Dimal's Avatar
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    Re: Water filters

    Fair enough poddy66,

    Looks like we were both trying to offer the same advice but in different ways.... And unlike you mate, I am not a professional in this area, just a user ;).... Sorry if I came across as trying to have a dig at you, I wasnt, just trying to be helpful is all.

    All the best,
    Mal.

  23. #23
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    Re: Water filters

    mal what do you do for a crust cheers steven poddy66

  24. #24
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    Re: Water filters

    Hi All

    This is my first post and I am glad I stumbled onto the site!

    We are in Adelaide and Adelaides water has a notorious reputation, although it has improved over the past few years. We have a WaterWays filtration system which is a tap plumbed in to our sink. I love it! I dont know if they are available interstate but would personally not have Puratap (another company) which I believe has expanded into Queensland.

    We have a Nuova Simonella and hubby has thrown out all instant coffee, never to be bought again! It is a bit of a struggle at work now, because everything tastes blah and yes, my boss thinks Moccona is gourmet!

  25. #25
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    Re: Water filters

    Melgel - Welcome to Coffee Snobs, from another Adelaidean.


  26. #26
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    Re: Water filters

    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by poddy66 link=1167137360/15#20 date=1167398400
    my research has shown that the use of granular activated carbon with slow disolving phospate helps prevent scale so what do you all think ?.
    poddy66

    Slow dissolving phosphates do help reduce scale formation..... mainly in things like washing machines and dishwashers.... (ever heard of Calgon)

    The problem is to get a reasonable level of protection the dose must be quite high and its effectiveness at preventing scale reduces significantly at boiling point - which is where we need it.

    Im not sure Id want to have phosphates in my coffee :o. They are fine for reducing the scratchiness of fabrics and getting a gleam on glassware.

    Phosphate softening products are no longer sold in the US because of the environmental pollution they cause - they also dont like the ion exchange units because of the salt recharge (but at least the salt came from the ocean and is going back there) :)



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